George Albert Smith on Pork:

There is another subject under consideration, which weighs very heavily upon the minds of the Saints. The Word of Wisdom recommends us to use the flesh of animals sparingly. The law of Moses prohibited Israel the use of swine's flesh; but in the Gentile world at the present day it is considered superior, as food, to almost every other kind of flesh. And even among us, with the education and training that we have received, there is a great deal of it used. . . . For some reason God, by special law, prohibited its use to the children of Israel; and it certainly seems desirable that we should also discontinue its use, as within the past few years in some countries where a great amount of pork has been consumed the people have been afflicted with a kind of pestilence - a disease which is considered incurable. It is therefore wise and prudent for us to adopt plans to procure supplies from other sources.

Journal of Discourses12:198-199